Patents by Inventor Hitoshi Takayama
Hitoshi Takayama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20190118785Abstract: A brake control device and a brake system are configured to appropriately apply a braking force to a rotary body of a human-powered vehicle. The brake control device includes an electronic controller that controls a braking portion electrically driven to brake a rotary body rotating in accordance with traveling of a human-powered vehicle. The electronic controller controls the braking portion in accordance with an operation amount of an operating device and a state related to the human-powered vehicle.Type: ApplicationFiled: September 26, 2018Publication date: April 25, 2019Inventors: Hitoshi TAKAYAMA, Toshihiko TAKAHASHI, Masahiro NAKAKURA
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Publication number: 20190061716Abstract: An electric brake system that appropriately brakes a rotary body of a human powered vehicle in various situations is applicable to a human powered vehicle and includes a brake device including an electric actuator operated by electric power from a power supply, and a braking portion driven by the electric actuator to brake a rotary body of the human powered vehicle, a state detector detecting a state of the human powered vehicle other than an operation of the brake device performed by a user, and a control unit controlling the brake device so that the braking portion brakes the rotary body based on a detection result of the state detector.Type: ApplicationFiled: August 29, 2018Publication date: February 28, 2019Applicant: SHIMANO INC.Inventors: Toshihiko TAKAHASHI, Hitoshi TAKAYAMA, Masahiko FUKUDA, Masahiro NAKAKURA
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Publication number: 20190061711Abstract: To provide a brake device and an electric brake system that appropriately brakes a rotary body of a human powered vehicle in various situations, a brake device is applicable to a human powered vehicle and includes an electric actuator operated by electric power from a power supply, a braking portion driven by the electric actuator to brake a rotary body of the human powered vehicle, and a power storage provided separately from the power supply to supply electric power to the electric actuator.Type: ApplicationFiled: August 29, 2018Publication date: February 28, 2019Applicant: SHIMANO INC.Inventors: Toshihiko TAKAHASHI, Hitoshi TAKAYAMA
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Patent number: 10184733Abstract: A heat exchanger includes: a first flow passage where first liquid flows; a second flow passage where second liquid flows; and a heat exchanger main body configured to exchange heat between the first liquid and the second liquid. The heat exchanger main body includes a cross-sectional area adjuster configured to change a flow passage cross-sectional area of at least one of the first flow passage and the second flow passage by thermal deformation. The cross-sectional area adjuster adjusts a value of the flow passage cross-sectional area in a low temperature range to be larger than a value of the flow passage cross-sectional area in a high temperature range.Type: GrantFiled: December 27, 2015Date of Patent: January 22, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi Tominaga, Daisuke Tokozakura, Takahiro Shiina, Kazuya Arakawa, Hitoshi Takayama, Keisuke Ichige, Masanori Iritani
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Patent number: 10001210Abstract: A lubrication structure includes a liquid drop splashing device and an electret portion. The liquid drop splashing device is configured to turn a lubricating liquid for lubricating machine-element components into liquid drops. The liquid drop splashing device is configured to splash the lubricating liquid turned into the liquid drops. The machine-element components configure contact parts. Each contact part is a part where corresponding adjacent machine-element components come into contact with each other. An electret portion is provided to a vicinity of each contact part. The electret portion is composed of an electret.Type: GrantFiled: February 18, 2016Date of Patent: June 19, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keisuke Ichige, Masanori Iritani, Hitoshi Takayama, Takahiro Shiina, Daisuke Tokozakura, Satoshi Tominaga, Kazuya Arakawa
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Patent number: 9793784Abstract: There is provided a cooling structure whose performance for cooling ring members and brushes is enhanced. In a cooling structure applied to a slip ring device including ring members provided to an input shaft and brushes contacting with these ring members, the input shaft includes a shaft member where an external spline portion is formed, and a cylindrical member that is installed over the external circumference of the shaft member so that an internal spline portion formed on the cylindrical member is meshed with the external spline portion, and that the ring members are fixed to the cylindrical member. The internal spline portion is formed upon a portion of the inner circumferential surface of the cylindrical member that lies on the radially inward side of the ring members.Type: GrantFiled: November 14, 2013Date of Patent: October 17, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi Tominaga, Takahiro Shiina, Akira Murakami, Hitoshi Takayama, Shu Asami, Takao Watanabe, Kiyoshi Uetsuji, Shuji Yumoto, Hirofumi Fujiwara
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Publication number: 20160245392Abstract: A lubrication structure includes a liquid drop splashing device and an electret portion. The liquid drop splashing device is configured to turn a lubricating liquid for lubricating machine-element components into liquid drops. The liquid drop splashing device is configured to splash the lubricating liquid turned into the liquid drops. The machine-element components configure contact parts. Each contact part is a part where corresponding adjacent machine-element components come into contact with each other. An electret portion is provided to a vicinity of each contact part. The electret portion is composed of an electret.Type: ApplicationFiled: February 18, 2016Publication date: August 25, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keisuke ICHIGE, Masanori IRITANI, Hitoshi TAKAYAMA, Takahiro SHllNA, Daisuke TOKOZAKURA, Satoshi TOMINAGA, Kazuya ARAKAWA
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Publication number: 20160223274Abstract: A heat exchanger includes: a first flow passage where first liquid flows; a second flow passage where second liquid flows; and a heat exchanger main body configured to exchange heat between the first liquid and the second liquid. The heat exchanger main body includes a cross-sectional area adjuster configured to change a flow passage cross-sectional area of at least one of the first flow passage and the second flow passage by thermal deformation. The cross-sectional area adjuster adjusts a value of the flow passage cross-sectional area in a low temperature range to be larger than a value of the flow passage cross-sectional area in a high temperature range.Type: ApplicationFiled: December 27, 2015Publication date: August 4, 2016Applicant: Toyota Jidosha Kabushiki KaishaInventors: Satoshi TOMINAGA, Daisuke TOKOZAKURA, Takahiro SHllNA, Kazuya ARAKAWA, Hitoshi TAKAYAMA, Keisuke ICHIGE, Masanori IRITANI
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Publication number: 20160176235Abstract: A pneumatic tire is provided in the tread portion with zigzag crown circumferential grooves 3 having pitch length Pc, zigzag shoulder circumferential grooves 4 having pitch length Ps, crown lateral grooves 5 inclined at an angle ?c, and shoulder lateral grooves 6 inclined at an angle ?s wherein Ps>Pc and ?s<?c. Both ends of the respective crown lateral grooves 5 are connected to the zigzag groove segments 3a or 3b of the crown circumferential grooves 3 which groove segments 3a or 3b are inclined with respect to the tire axial direction to the opposite direction to the inclining direction of the crown lateral grooves 5. The number NS of the shoulder lateral grooves 6 is more than the number Nc of the crown lateral grooves 5.Type: ApplicationFiled: December 4, 2015Publication date: June 23, 2016Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventor: Hitoshi TAKAYAMA
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Publication number: 20150311772Abstract: There is provided a slip ring device in which three ring members through are provided so as to be lined up in sequence along an axial line of an input shaft and brushes contact with the ring members respectively, three inner bus bars are provided and are supported by a sleeve portion of the input shaft, and contacting groove portions are provided so as to dent in the radially outwards direction into the inner circumferential surfaces of the ring members and extend along the axial line direction, with one end portions of the inner bus bars being set into these contacting groove portions respectively.Type: ApplicationFiled: December 4, 2013Publication date: October 29, 2015Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi TOMINAGA, Takahiro SHIINA, Akira MURAKAMI, Hitoshi TAKAYAMA, Shu ASAMI, Takao WATANABE, Kiyoshi UETSUJI, Shuji YUMOTO, Hirofumi FUJIWARA
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Publication number: 20150288256Abstract: There is provided a cooling structure whose performance for cooling ring members and brushes is enhanced. In a cooling structure applied to a slip ring device including ring members provided to an input shaft and brushes contacting with these ring members, the input shaft includes a shaft member where an external spline portion is formed, and a cylindrical member that is installed over the external circumference of the shaft member so that an internal spline portion formed on the cylindrical member is meshed with the external spline portion, and that the ring members are fixed to the cylindrical member. The internal spline portion is formed upon a portion of the inner circumferential surface of the cylindrical member that lies on the radially inward side of the ring members.Type: ApplicationFiled: November 14, 2013Publication date: October 8, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoshi Tominaga, Takahiro Shiina, Akira Murakami, Hitoshi Takayama, Shu Asami, Takao Watanabe, Kiyoshi Uetsuji, Shuji Yumoto, Hirofumi Fujiwara
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Patent number: 8812206Abstract: Surplus pressure is obtained from a difference between a hydraulic pressure value detected by a hydraulic pressure sensor and a target supplied hydraulic pressure. A determination is made about whether or not a possible hydraulic pressure in a prescribed time will become lower than a minimum required hydraulic pressure based on a current surplus pressure and a changing rate of the surplus pressure. If the possible hydraulic pressure is lower than the minimum required hydraulic pressure, correction is conducted to increase supplied hydraulic pressure. Accordingly, control is conducted so that the regularly required surplus pressure can be reduced to a minimum required amount.Type: GrantFiled: April 11, 2012Date of Patent: August 19, 2014Assignee: Honda Motor Co., Ltd.Inventors: Hirohiko Totsuka, Hitoshi Takayama
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Patent number: 8744708Abstract: Surplus pressure is obtained from a difference between a hydraulic pressure value detected by a hydraulic pressure sensor and a target supplied hydraulic pressure. A determination is made about whether or not a possible hydraulic pressure in a prescribed time will become lower than a minimum required hydraulic pressure based on a current surplus pressure and a changing rate of the surplus pressure. If the possible hydraulic pressure is lower than the minimum required hydraulic pressure, correction is conducted to increase supplied hydraulic pressure. Accordingly, control is conducted so that the regularly required surplus pressure can be reduced to a minimum required amount.Type: GrantFiled: April 11, 2012Date of Patent: June 3, 2014Assignee: Honda Motor Co., Ltd.Inventors: Hirohiko Totsuka, Hitoshi Takayama
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Publication number: 20120259521Abstract: Surplus pressure is obtained from a difference between a hydraulic pressure value detected by a hydraulic pressure sensor and a target supplied hydraulic pressure. A determination is made about whether or not a possible hydraulic pressure in a prescribed time will become lower than a minimum required hydraulic pressure based on a current surplus pressure and a changing rate of the surplus pressure. If the possible hydraulic pressure is lower than the minimum required hydraulic pressure, correction is conducted to increase supplied hydraulic pressure. Accordingly, control is conducted so that the regularly required surplus pressure can be reduced to a minimum required amount.Type: ApplicationFiled: April 11, 2012Publication date: October 11, 2012Applicant: HONDA MOTOR CO., LTDInventors: Hirohiko Totsuka, Hitoshi Takayama
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Patent number: D547247Type: GrantFiled: February 3, 2006Date of Patent: July 24, 2007Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kenta Shimoguchi, Hitoshi Takayama
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Patent number: D572637Type: GrantFiled: June 26, 2007Date of Patent: July 8, 2008Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takumi Nakamura, Takayasu Furukawa, Hitoshi Takayama, Hideo Karikomi, Jinichi Sato
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Patent number: D575425Type: GrantFiled: June 26, 2007Date of Patent: August 19, 2008Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takumi Nakamura, Takayasu Furukawa, Jinichi Sato, Hitoshi Takayama
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Patent number: D685704Type: GrantFiled: January 14, 2013Date of Patent: July 9, 2013Assignee: Hino Motors, Ltd.Inventor: Hitoshi Takayama
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Patent number: D760121Type: GrantFiled: October 9, 2015Date of Patent: June 28, 2016Assignee: Toyota Jidosha Kabushiki KaishaInventors: Jinichi Sato, Ken Iwasaki, Hitoshi Takayama, Hideo Karikomi, Chung Lee
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Patent number: D773981Type: GrantFiled: February 13, 2015Date of Patent: December 13, 2016Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventor: Hitoshi Takayama